package com.ctrip.framework.apollo.spi;

import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.collect.Maps;

/**
 * @author Jason Song(song_s@ctrip.com)
 */
public class DefaultConfigRegistry implements ConfigRegistry {
	private static final Logger s_logger = LoggerFactory.getLogger(DefaultConfigRegistry.class);
	private Map<String, ConfigFactory> m_instances = Maps.newConcurrentMap();

	@Override
	public void register(String namespace, ConfigFactory factory) {
		if (m_instances.containsKey(namespace)) {
			s_logger.warn("ConfigFactory({}) is overridden by {}!", namespace, factory.getClass());
		}

		m_instances.put(namespace, factory);
	}

	@Override
	public ConfigFactory getFactory(String namespace) {
		ConfigFactory config = m_instances.get(namespace);

		return config;
	}
}
